Cutter-head.



M. H. LYONS.

CUTTER AD.

APPLICATION r1 APB.28, 1909.

949,126, Patented Feb. 15,1910.

. are- CUTTER-HEAD.

Specification of Letters Patent. h

Patented Feb. 15,1910.

Application filed April as, 1969. Serial No. 492,647.

To all whom it concern:

Be it known that I, MIOHAEL'H. LYoNs, a

citizen of the United States, and resident of Brockton, in the county of Plymouth and State of Massachusetts, have invented an Improvement in Cutter-Heads, of which the following description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts.

My present invention is a cutterhead for increaslng the effectiveness and rapidity of work of such machines as last-turning lathes, or wherever it is desired to-rough oif the work rapidly just ahead of the finishing thereof. To this end, I have provided in one and the same cutterhead two kinds of cutters, one arranged axially for routing the work and the other arranged peripherally for finishing, the cutter being held there- -fore oblique to the work in order that both sets of blades may operate at the same time on the work. Preferably also the routing portion of the cutterhead is made removable, as this will get dull, broken, or out of order muth quicker than the rest of the cutterhea In the drawings, in which I have shown a preferred embodiment of my invention, Figure 1 is a view of the cutterhead in front end elevation; Fig. 2 a .view thereof in side elevation; Fig. 3 a cross-sectional view on theline 33-, Fig. l; and Fig. 4 is a view partly in section and partly in side elevation illustrating .the operation of the cutterhead on a piece of woo a series, of tangentially set blades 1, herein M shown as connected by radial necks to a central hub 3. The outline or cutting edges of these blades will conform to the particular work in hand, being loy for turning lastslin a last-lathe. To this end, I provide herein shown as' semi-circular for last work. At its front endthe cutterhead is cut away or notched, see Fig. 3 to provide a recess 4 in which I mount a rosette-like routing cutter .5 secured immovably by any suitable means as by a screw 6. The action of my tool on the work is shown with reference to a block of wood 7, from which it will be seen that the routing cutter gouges out and roughs off the work rapidly ahead of the cutters 1 which follow and finish the work neatly in usual manner/thereby accomplishing quickly; and neatly the desired results with one tool and at one operation. I have herein shown the cutterhead as made in two parts, the blades 1 being formed integrally with each other,

but it will be understood that I am not limited in this respect, as the blades may be otherwise formedand may be set individually as is more customary in wood-working machinery.

Having described my invention, what I claim as new and desire to secure by Letters Patent is;

1. A cutterhead, comprisinga series of laterally projecting, tangentially-set cutting blades, having approximatelysemi-circular cutting ends capable of doing relatively fine work, and a routing cutter capable of simultaneously doing rough work, projecting axially from the frontend of said cutter head. p

2. A cutterhead, comprising a seriesof cutting blades extending laterally about their axis of rotation, an axial recess adjacent the meeting axial ends of said blades,

and a roughing cutter removably mounted in. said recess and projectingforward beyond said blades in work aheadof said lades.

. In testimony whereof, Ihave-signed my name to this specification, in the presence of two subscribingwitnesses.

, .MICHAEL H. LYONS.

I Witnesses:

FERD S. SrRAoUE, FRED Bnmowoon,

osition torough off the 8 

